(WBIR) The Knox County Sheriff's Office confirmed Sunday afternoon it is investigating a photo of a dog tied to a trailer stopped at a red light in Farragut.

Dozens of viewers have contacted 10News, many from out of state, about the photo via Facebook, Twitter, email, and phone. The photo has been shared hundreds of times online.

This photo has been posted on the WBIR Facebook page dozens of times. The Knox County Sheriff's Office confirmed it is investigating.(Photo: Viewer submitted)

The picture shows a small, white dog bound at the legs and unable to move from a trailer hooked to a car. Another photo shows a man, who 10News has chosen not to identify because he has not been charged with a crime, out of the car with the dog freed.

A viewer who posted the picture said he snapped it at the corner of Campbell Station Road and Grigsby Chapel Road in Farragut. The same viewer said the second photo was taken near the Smith Road and Kingston Pike intersection.